ENF - Forgotten Towel (The Proposal)
After showering, a woman (Sandra Bullock) discovers there no towel left in the bathroom and must walk down the hall completely naked. She them bumps into her male friend (Ryan Reynolds) who is also naked and narrowly avoids being seen.
Note: I find the extended version to be superior as there's much more to enjoy, but due to copyright I can only post this version. Here's a link to the extended version: • "Why are you naked?" - The Proposal
(Also this is actually a pretty funny movie if you wanna give it a try.)